BackgroundThe British Columbia (BC) Hepatitis Testers Cohort (BC-HTC) was established to assess and monitor hepatitis C (HCV) epidemiology, cost of illness and treatment effectiveness in BC, Canada. In this paper, we describe the cohort construction, data linkage process, linkage yields, and comparison of the characteristics of linked and unlinked individuals.MethodsThe BC-HTC includes all individuals tested for HCV and/or HIV or reported as a case of HCV, hepatitis B (HBV), HIV or active tuberculosis (TB) in BC linked with the provincial health insurance client roster, medical visits, hospitalizations, drug prescriptions, the cancer registry and mortality data using unique personal health numbers. The cohort includes data since inception (1990/1992) of each database until 2012/2013 with plans for annual updates. We computed linkage rates by year and compared the characteristics of linked and unlinked individuals.ResultsOf 2,656,323 unique individuals available in the laboratory and surveillance data, 1,427,917(54%) were included in the final linked cohort, including about 1.15 million tested for HCV and about 1.02 million tested for HIV. The linkage rate was 86% for HCV tests, 89% for HCV cases, 95% for active TB cases, 48% for HIV tests and 36% for HIV cases. Linkage rates increased from 40% for HCV negatives and 70% for HCV positives in 1992 to ~90% after 2005. Linkage rates were lower for males, younger age at testing, and those with unknown residence location. Linkage rates for HCV testers co-infected with HIV, HBV or TB were very high (90–100%).ConclusionLinkage rates increased over time related to improvements in completeness of identifiers in laboratory, surveillance, and registry databases. Linkage rates were higher for HCV than HIV testers, those testing positive, older individuals, and females. Data from the cohort provide essential information to support the development of prevention, care and treatment initiatives for those infected with HCV.
SummaryThe widespread use of highly active antiretroviral therapy (HAART) has dramatically reduced HIV-associated morbidity and mortality where treatment has been made available. Very high levels of adherence to HAART are a prerequisite for a successful virological and immunological response. Low adherence increases the risk of treatment failure and disease progression. It is also likely to lead to further transmission of resistant viruses, and to have a negative impact on the cost effectiveness of HAART. Low adherence is difficult to predict, and this has two key implications for service provision. Firstly, HAART should not be withheld on the basis of assumptions about adherence. Secondly, support with adherence should be provided to all patients prescribed HAART. Our understanding of barriers to and enablers of high adherence, and the evidence base regarding effective interventions, is limited. Meta-analysis of randomized controlled trials available from the general literature suggests multiple interventions are required to maintain high adherence to chronic therapy. This document recommends a series of measures for adoption within HIV clinical care settings, based on evaluation of existing data. High adherence is a process, not a single event, and therefore adherence support must be integrated into clinical follow up. Every prescribing unit should have a written policy on provision of adherence support, and ensure that staff are appropriately trained to make delivery of such services possible.
IntroductionBritish Columbia (BC), Canada declared a public health emergency in April 2016 for opioid overdose. Comprehensive data was needed to identify risk factors, inform interventions, and evaluate response actions. We describe the development of an overdose cohort, including linkage strategy, case definitions, and data governance model, and present the resulting characteristics, including data linkage yields and case overlap among data sources.MethodsOverdose events from hospital admissions, physician visits, poison centre and ambulance calls, emergency department visits, and coroner’s data were grouped into episodes if records were present in multiple sources. A minimum of five years of universal health care records (all prescription dispensations, fee-for-service physician billings, emergency department visits and hospitalizations) were appended for each individual. A 20% random sample of BC residents and a 1:5 matched case-control set were generated. Consultation and prioritization ensured analysts worked to address questions to directly inform public health actions.Results10,456 individuals suffered 14,292 overdoses from January 1, 2015 to Nov 30, 2016. Only 28% of overdose events were found in more than one dataset with the unique contribution of cases highest from ambulance records (32%). Compared with fatal overdoses, non-fatal events more often involved females, younger individuals (20 to 29 years) and those 60 or older. In 78% of illegal drug deaths, there was no associated ambulance response. In the year prior to first recorded overdose, 60% of individuals had at least one ED visit, 31% at least one hospital admission, 80% at least one physician visit, and 87% had filled at least one prescription in a community pharmacy.ConclusionWhile resource-intensive to establish, a linked cohort is useful for characterizing the full extent of the epidemic, defining sub-populations at risk, and patterns of contact with the health system. Overdose studies in other jurisdictions should consider the inclusion of multiple data sources.
Background: Lesbian, gay, bisexual, and transgender (LGBT) patients fear being open about their identities, not receiving equal or safe treatment, and having their family and surrogates disrespected or ignored by providers. Objective: To examine inadequate, disrespectful, and abusive care to patients and family due to sexual orientation or gender identity. Design: A cross-sectional study using an online survey. Setting/Subjects: Home and residential hospice, inpatient palliative care service, and other inpatient and outpatient settings. Subjects were 865 hospice and palliative care providers, including physicians, social workers, nurses, and chaplains. Measurements: Inadequate, disrespectful, or abusive care to LGBT patients and discriminatory treatment of family and surrogates were measured. Results: Among respondents, 53.6% thought that lesbian, gay, or bisexual (LGB) patients were more likely than non-LGB patients to experience discrimination at their institution; 23.7% observed discriminatory care; 64.3% reported that transgender patients were more likely than nontransgender patients to experience discrimination; 21.3% observed discrimination to transgender patients; 15% observed the spouse/partner of LGBT patients having their treatment decisions disregarded or minimized; and 14.3% observed the spouse/partner or surrogate being treated disrespectfully. Conclusions: These findings provide strong evidence that LGBT patients and their families are more likely to receive discriminatory care as compared with those who are not LGBT. Disrespectful care can negatively impact the trust patients have in providers and institutions, and lead to delaying or avoiding care, or not disclosing relevant information. Partners/spouses and surrogates may be treated disrespectfully, have their treatment decisions ignored or minimized, be denied or have limited access to the patient, and be denied private time. Advocacy and staff training should address barriers to delivering respectful and nondiscriminatory care.
Purpose This paper aims to investigate the impacts of a science-based environmental communication campaign at a university dining hall. The impacts are assessed in terms of student attitudes toward sustainability, food consumption choices and perceptions and understanding of the campaign and the information it communicated. Design/methodology/approach A communication campaign was designed to convey the water footprint of food entrées available at a university dining hall. This campaign was tested during a three-week field experiment in which students at the dining hall were exposed to information about the sustainability of their food. To measure behavior and attitude change, sales and production data were collected before, during and after the campaign, and pre- and post-test surveys were administered. To better understand perceptions, the authors conducted in-depth interviews with undergraduate students who frequented the dining hall. Findings Consumption patterns did not change significantly as a result of the campaign, and students’ attitude scores actually became slightly less positive toward choosing low water footprint foods. Interview data helped explain these results by showing that the ability and desire of students to choose sustainable food were overwhelmed by convenience and time pressures; other food attributes often outweighed sustainability; limited food source information could not verify the benefits of sustainable food; and the science of water footprints was disconnected from students’ subjective concepts of sustainability. Originality/value This paper empirically examines how students understand and interpret an environmental change campaign focused on sustainable food. It addresses an important gap in the literature by augmenting experimental and survey results with in-depth interview data, which help explain the often ineffective outcomes of behavior change campaigns. The research was conducted in the novel setting of a university dining hall.
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